mordashka
Magnetics Epcos (Siemens Matsushita Components), Germany TDK Ferroxcube
North West Laboratory

Engineering Center SZL and LEPCOS
— General representative of Epcos AG by ferrite in the CIS
— Official distributor and general representative for ferrites of
    TDK Electronics Europe Gmbh in the CIS
— Authorized distributor of Magnetics in Russia, CIS and Baltic countries
— Exclusive distributor of USM in Russia and CIS countries
— Official Distributor Temex Ceramics in Russia and CIS
 

Fibreglass Tubes

fibreglass tubes made of fibre glass based on epoxide resin or silicone resin or quartz glass for production of impeder casings for high-frequency welding of steel tubes.

Fibreglass TubesCorrect choice of impeder casing’s material for lines producing steel tubes by high-frequency welding is of primary importance because it is no sense to use high-quality energy saving ferrite cores without providing their reliable protection. Thanks to its more than 20-year long operation experience, USM Company succeeded in developing and making advanced and reliable materials for using as protective casing of impeders.

Fibreglass TubesAdvantages of using USM made fibreglass tubes are high mechanical strength, capability of long-term operation at high temperatures, ideally flat surface preventing a sticking to it any drops of melted metal.

Characteristics of FibreGlass Material

Type WT912 WT2000 BK
Maximum working temperature 180 °С 220 °С 280-300 °С

In most cases main material used for production of impeder casings is Fibreglass WT912 (green line) based on epoxide resin. For higher temperatures it is possible to use following materials:

BK (Quartz Glass Casing) BK (Quartz Glass Casing) based on quartz glass. After 1000 hours of operation at a temperature of 280-300 °C this material does not deteriorate its parameters.

MICA (Silicon Resin Casing)MICA (Silicon Resin Casing). This material is characterized by increased maximum working temperature (450-500 °C) and has a small thickness of walls – as little as 2-3 mm.

Standard Sizes and Thickness of Tubes for Impeder casings

Inner Diameter, mm Tube Thickness, mm
4…6 0.5 0.75 1 1.5 2 2.5 3    
6…10 0.5 0.75 1 1.5 2 2.5 3    
10.5…15 0.5 0.75 1 1.5 2 2.5 3    
15.5…20 0.5 0.75 1 1.5 2 2.5 3 3.25 3.50
20.5…25 0.5 0.75 1 1.25 1.5 2 2.5 3  
25.5…30 1 1.5 2 2.5 3        
30.5…35 1 1.5 2 2.5 3        
35.5…40 1 1.5 2 2.5 3        
40.5…45 1 1.5 2 2.5 3        
45.5…49 1 1.5 1.75 2 2.5 3      
50…55 1.5 2 2.5 3 4        
56…60 1.5 2 2.5 3          
61…65 1.5 2 2.5 3          
66…70 1.5 2 2.5 3          
71…75 1.5 2 2.5 3          
76…80 1.5 2 2.5 3          
81…85 1.5 2 2.5 3 4        
86…90 1.5 2 2.5 3          
91…95 1.5 2 2.5 3          
96…100 1.5 2 2.5 3          

Casing tubes with other dimensions are issued on additional order. An order, issue of rectangular-shaped and square-shaped products is also possible.

Celeron Bars

To make an assembly impeder, tubes may be equipped with blind plugs (Celeron Bars), which are supported at USM warehouse with diameters from 5 to 90 mm.

 
NORTH-WESTERN LABORATORY: NEWS
 
05.06 09 
Epcos has developed a new N95 power ferrite material with an exceptionally low power loss.



12.05 09 
New Epcos ferrite ring core sizes : N87 R20*12*6 and N87 R28*16*9



02.02 09 
New Epcos ferrite E core size : N87 E16/8/7,8 B66502GX187



 
 


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